Loaded Onion Burgers

Ingredients

• 1 1/3 lb medium ground beef
• 1 egg
• .25 cup dry bread crumbs
• 3 green onions, finely chopped
• 3 tbsp Better Than Bouillon Sautéed Onion Base
• .5 tsp pepper
• 4 slices Cheddar cheese
• 2 tbsp butter
• 1 onion, thinly sliced into rings
• 2 tbsp Dijon mustard
• 2 tbsp mayonnaise
• 4 burger buns, split and toasted
• 1 cup baby arugula
• 4 thick slices tomato
• 16 bread and butter pickles